3. (a) Three sides of a triangular field are 20 m, 21 m, 29 m long
respectively. Find the cost of sowing seeds in the field at the rate of Rs.
8.50 per square metre.
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1 hectare = 10,000 sq metre. Given, Rate of sowing the field per hectare = Rs. 58. Total cost of sowing the triangular field = Rs. 783. Therefore, Total cost = Area of the triangular field × Rs. 58. x = 300 m. Hence, Height of the triangular field = x = 300 m. Base of triangular field = 3x = 3 × 300 = 900 m. Question 3. Find the area of triangle whose sides are 42cm,34 cm and 20cm in length. Hence find the height …
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6
Answer:
Rs1977.25
Explanation:
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